Process optimization study on the carbonylation of methyl acetate

doi:10.1016/j.cjche.2018.01.024

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (9): 1937-1942.DOI: 10.1016/j.cjche.2018.01.024

• Catalysis, Kinetics and Reaction Engineering • 上一篇下一篇

Process optimization study on the carbonylation of methyl acetate

Baohe Wang, Baomin Ge, Jing Zhu, Lina Wang

Key Laboratory for Green Chemical Technology of Ministry of Education, Research and Development Center of Petrochemical Technology, Tianjin University, Tianjin 300072, China

收稿日期:2017-05-26 修回日期:2018-01-16 出版日期:2018-09-28 发布日期:2018-10-17
通讯作者: Jing Zhu,E-mail address:cj_zhu1975@tju.edu.cn

Process optimization study on the carbonylation of methyl acetate

Baohe Wang, Baomin Ge, Jing Zhu, Lina Wang

Key Laboratory for Green Chemical Technology of Ministry of Education, Research and Development Center of Petrochemical Technology, Tianjin University, Tianjin 300072, China

Received:2017-05-26 Revised:2018-01-16 Online:2018-09-28 Published:2018-10-17
Contact: Jing Zhu,E-mail address:cj_zhu1975@tju.edu.cn

摘要/Abstract

摘要： Acetic anhydride is the important organic chemical raw material, and is used widely in chemical industry, pharmaceutical industry, dyes, spices and other fields. In this paper, the process of carbonylation of methyl acetate in rhodium iodine catalyst system was studied, and the suitable reaction conditions were determined. At the same time, the kinetic model was established. The optimum reaction conditions were as follows:the reaction pressure was 5 MPa, the hydrogen content was 8%, the amount of iodomethane was 15%, the amount of lithium iodide was 3%, the reaction temperature was 150℃ and the reaction time is 3 h. Under the above reaction conditions, the selectivity of the reaction is close to 100% and the conversion is as high as 92%. The macroscopic kinetic model of the reaction was established in the temperature range of 120℃-150℃. The reaction is an irreversible reaction without the formation of by-products and the dynamic equation is also given in the Conclusions section.

关键词: Carbonylation, Rhodium iodine catalyst, Reaction conditions, Kinetics

Abstract: Acetic anhydride is the important organic chemical raw material, and is used widely in chemical industry, pharmaceutical industry, dyes, spices and other fields. In this paper, the process of carbonylation of methyl acetate in rhodium iodine catalyst system was studied, and the suitable reaction conditions were determined. At the same time, the kinetic model was established. The optimum reaction conditions were as follows:the reaction pressure was 5 MPa, the hydrogen content was 8%, the amount of iodomethane was 15%, the amount of lithium iodide was 3%, the reaction temperature was 150℃ and the reaction time is 3 h. Under the above reaction conditions, the selectivity of the reaction is close to 100% and the conversion is as high as 92%. The macroscopic kinetic model of the reaction was established in the temperature range of 120℃-150℃. The reaction is an irreversible reaction without the formation of by-products and the dynamic equation is also given in the Conclusions section.

Key words: Carbonylation, Rhodium iodine catalyst, Reaction conditions, Kinetics

Baohe Wang, Baomin Ge, Jing Zhu, Lina Wang. Process optimization study on the carbonylation of methyl acetate[J]. Chinese Journal of Chemical Engineering, 2018, 26(9): 1937-1942.

Baohe Wang, Baomin Ge, Jing Zhu, Lina Wang. Process optimization study on the carbonylation of methyl acetate[J]. Chin.J.Chem.Eng., 2018, 26(9): 1937-1942.

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Process optimization study on the carbonylation of methyl acetate

Process optimization study on the carbonylation of methyl acetate

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